CVE-2026-113356

High

Description

DokuWiki before 2026-07-14c contains a PHP object injection vulnerability in Draft::getDraftText() that passes draft file contents to unserialize() without restricting allowed classes. Authenticated users with edit rights can race concurrent draft rewrites to splice serialized data, instantiating gadgets like MemoryIndex or Installer for arbitrary file write, deletion, and code execution.

SeverityHigh

CVSS7.5

Exploit probability—

Product

DokuWiki

PublishedOct 20, 2026

First seenOct 20, 2026

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

DokuWiki DokuWiki2026-07-14c or later

Patches

github.com/dokuwiki/dokuwiki/commit/1531802afb2ac3eea147a887600fa5750e74e681

Vendor advisories

github.com/dokuwiki/dokuwiki/releases/tag/release-2026-07-14c

Affected products

Product	Affected versions	Fixed in
DokuWiki DokuWiki	v < 2026-07-14c	2026-07-14c

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